1996500000 has 336 divisors, whose sum is σ = 7205532768. Its totient is φ = 484000000.

The previous prime is 1996499987. The next prime is 1996500017. The reversal of 1996500000 is 56991.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 181499995 + ... + 181500005.

It is an arithmetic number, because the mean of its divisors is an integer number (21445038).

Almost surely, 2^1996500000 is an apocalyptic number.

1996500000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1996500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3602766384).

1996500000 is an abundant number, since it is smaller than the sum of its proper divisors (5209032768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1996500000 is an frugal number, since it uses more digits than its factorization.

1996500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 21 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 1996500000 is about 44682.2112254978. The cubic root of 1996500000 is about 1259.1856668087.

Adding to 1996500000 its reverse (56991), we get a palindrome (1996556991).

The spelling of 1996500000 in words is "one billion, nine hundred ninety-six million, five hundred thousand".